CN110145477B - Steam-electricity dual-power driving fan structure capable of being automatically switched - Google Patents
Steam-electricity dual-power driving fan structure capable of being automatically switched Download PDFInfo
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- CN110145477B CN110145477B CN201910371680.0A CN201910371680A CN110145477B CN 110145477 B CN110145477 B CN 110145477B CN 201910371680 A CN201910371680 A CN 201910371680A CN 110145477 B CN110145477 B CN 110145477B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/04—Units comprising pumps and their driving means the pump being fluid-driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
- F04D29/054—Arrangements for joining or assembling shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an automatically switchable steam-electricity dual-power driving fan structure, and aims to overcome the defects that a fan driving structure is complex, and normal production is influenced because a single air source driving or motor driving cannot meet normal operation requirements in many times. The two permanent magnet couplings can be selected according to actual industrial and mining, when the permanent magnet couplings work, the controller controls the actuator motor to work, the output shaft of the actuator motor rotates to drive the pushing disc to rotate through the swing rod and the connecting rod, so that the pushing convex strips slide through the convex blocks from thin to thick, the sliding sleeve and the shaft sleeve are pushed to move in the direction far away from the pushing disc, the permanent magnet disc approaches the conductor disc, and the air gap between the conductor disc and the permanent magnet disc is reduced, so that the output shaft of the steam turbine or the output shaft of the motor can drive the rotating shaft of the fan to rotate. The controller controls the rotation angle of the output shaft of the motor of the actuator to realize the adjustment of 0-100% of output torque, and realize the clutching between the steam turbine and the fan and between the motor and the fan.
Description
Technical Field
The invention relates to a fan, in particular to a steam-electricity dual-power driving fan structure capable of automatically switching.
Background
China's thermal power generation accounts for 70% of the national generated energy, and industrial kilns are widely applied to various industries such as glass, metal, building materials and the like. The fan is used as an auxiliary machine for ventilation and induced draft of boilers, industrial kilns and drying furnaces, the fans and induced draft fans of large power station boilers and industrial kilns are generally driven by electric power, the fan is an auxiliary machine with high power consumption, and in order to reduce the power consumption, the fan is driven by a steam turbine under the condition of steam abundance, so that the power consumption is greatly reduced. The steam-driven fan has good economic benefits in practical application, can bring advantages for enterprises, but the steam-driven fan still has insufficient places in practical application: 1. the problem of starting a steam source is solved, in the initial starting stage of the unit, under the condition that no adjacent machine supplies steam, a steam-driven fan does not have a starting loaded condition, and an electric fan needs to be arranged to provide ventilation and induced air for a boiler, so that the problems of large equipment investment and low utilization rate of the electric fan are caused; 2. the low-load applicability is poor, when the boiler load is reduced to a certain value, the steam inlet parameter reduction of the steam-driven draught fan cannot meet the normal operation requirement, so that the phenomena of the reduction or instability of the output of the draught fan and the like are caused, and the normal production of the system is influenced; 3. the influence of a steam source is great, the steam supply cannot be continuous and stable like electric power, and when a steam supply unit has a problem, the flow and the pressure of steam required by a steam-driven fan cannot be ensured, so that the boiler and the kiln cannot be normally produced, even the production is stopped; 4. the control system and the fault maintenance are complex compared with the motor, the maintenance period is long, when the control system and the steam turbine have faults, the maintenance requirement is higher than that of the motor, the motor needs to be processed by very professional personnel and manufacturers, the spare parts are single in selectivity and long in processing time, and the operation efficiency of the system is seriously influenced. Therefore, the steam-driven fan still needs to be improved from various angles in the technology, so that the application of the steam-driven fan in various industries becomes more mature and has more advantages.
Disclosure of Invention
The invention overcomes the defects that the driving structure of the fan is complex, the normal operation requirement cannot be met in many times by adopting single air source driving or motor driving, and the normal production is influenced, and provides the steam-electricity double-power driving fan structure capable of automatically switching.
In order to solve the technical problems, the invention adopts the following technical scheme: a steam-electricity double-power driving fan structure capable of automatically switching comprises a steam turbine, a motor, a fan and a controller, wherein the fan is installed between the steam turbine and the motor, a steam turbine output shaft is installed on the steam turbine, a motor output shaft is installed on the motor, a fan rotating shaft is installed on the fan, two ends of the fan rotating shaft respectively extend out of the left side and the right side of the fan, and permanent magnet couplers are installed between the steam turbine output shaft and the fan rotating shaft and between the motor output shaft and the fan rotating shaft; the permanent magnet coupling comprises a conductor disc, a permanent magnet disc and an air gap adjusting mechanism, wherein the conductor disc and the permanent magnet disc are oppositely arranged, an air gap is formed between the conductor disc and the permanent magnet disc, the permanent magnet disc and the air gap adjusting mechanism are connected to two ends of a rotating shaft of the fan, and the conductor disc is fixedly connected to an output shaft of the steam turbine and an output shaft of the motor; air gap adjustment mechanism includes the mounting bracket, fixed cover, push away the driving disk, the sliding sleeve, flat face bearing, permanent magnet connecting shaft sleeve, axle sleeve slidable only revolves the suit in the fan pivot, fixed cover is installed on the mounting bracket, fixed cover and fan pivot activity suit, sliding sleeve slidable suit is on fixed cover, flat face bearing installs between axle sleeve and sliding sleeve, push away the dish towards the sliding sleeve on the surface equipartition be equipped with a plurality of curved promotion sand grips, the thickness that promotes the sand grip increases gradually from one end to the other end, be equipped with the lug with promoting the sand grip correspondence on the sliding sleeve terminal surface, push away the articulated connecting rod on the driving disk, the articulated pendulum rod of connecting rod tip, pendulum rod fastening connection executor motor output shaft, controller control executor motor, fastening connection has the adapter sleeve between fixed cover and the.
Permanent magnet couplings are arranged between the output shaft of the steam turbine and the rotating shaft of the fan and between the output shaft of the motor and the rotating shaft of the fan, and the permanent magnet couplings can be selected to work according to actual industrial and mining. When the permanent magnet coupling works, the controller controls the actuator motor to work, the actuator motor output shaft rotates to drive the pushing disc to rotate through the swing rod and the connecting rod, so that the pushing convex strips slide through the convex blocks from thin to thick, the pushing sliding sleeve and the shaft sleeve move towards the direction away from the pushing disc, the permanent magnet disc is close to the conductor disc, an air gap between the conductor disc and the permanent magnet disc is reduced, the steam turbine output shaft or the motor output shaft can drive the fan rotating shaft to rotate, and the air outlet of the fan starts air outlet. The larger the air gap, the smaller the output torque, and the smaller the air gap, the larger the output torque. The controller controls the rotation angle of the output shaft of the motor of the actuator to realize the adjustment of 0-100% of output torque, and realize the clutching between the steam turbine and the fan and between the motor and the fan. The automatic switching of the two permanent magnet couplers is realized through the controller, and the normal operation requirements of the fan under different conditions are met. The steam-electricity double-power driving fan capable of automatically switching is simple in structure, power for driving the fan can be automatically switched between the steam turbine and the motor, the normal operation requirements of the fan under different conditions can be met, and the influence of the fan on a production system due to the power problem is avoided. Steam turbine and motor each other are reserve, and arbitrary one kind drive arrangement breaks down, can not lead to the fact the influence to the fan operation, and two kinds of powers are connected with the fan through permanent magnet coupling respectively, can realize breaking away from completely with the operation fan, do not influence normal maintenance. The permanent magnet coupler does not need to consume energy, is free of mechanical connection, has low centering requirement, does not conduct vibration, is simple in structure, does not have maintenance cost, and improves the operation efficiency and stability of equipment.
Preferably, the front end of the motor connected with the actuator is connected with two limiting posts for resisting the limiting swing rod, and the two limiting posts are respectively arranged on two sides of the swing rod. The limiting column limits the rotation angle of the swing rod, the push disc is prevented from rotating over the head, and the phenomenon that the air gap is too large or too small is avoided.
Preferably, the sliding sleeve is provided with a mounting ring groove for mounting the plane bearing, and the plane bearing is mounted in the mounting ring groove. The arrangement of the mounting ring groove greatly improves the mounting stability of the plane bearing.
Preferably, the fixed sleeve is fixedly connected with a plurality of limiting blocks, and the pushing disc is arranged between the limiting blocks and the sliding sleeve. The stopper has played fine positioning action to the promotion dish, prevents to promote the dish and slides from fixed cover.
Preferably, the upper end and the lower end of the push disc are provided with extension arms, and the connecting rod is hinged to the end position of the upper extension arm. The extension arm is convenient for the connecting rod to be connected with the pushing disc.
Preferably, the edge of the conductor disc is provided with a positioning ring, the end part of the positioning ring is provided with an end cover, the end cover is provided with a through hole, and the permanent magnet disc is arranged in the positioning ring. The arrangement of the positioning ring and the end cover plays a good role in protecting the permanent magnetic disk.
Preferably, a ventilation pipe is arranged in the fan and close to the air outlet, a positioning sleeve, a pushing plug and a pre-tightening spring are arranged in the ventilation pipe and close to the air inlet, the pre-tightening spring abuts against the pushing plug, the pushing plug abuts against the positioning sleeve, a plurality of ventilation grooves axially arranged are uniformly distributed in the inner wall of the ventilation pipe, and the pushing plug is arranged between the ventilation grooves and the positioning sleeve; a piston cylinder is connected to the fixed sleeve, a piston is installed in the piston cylinder, a telescopic rod is connected to the piston, the lower end of the telescopic rod extends out of the piston cylinder, a row of meshing teeth are arranged on the telescopic rod, a return spring is installed below the piston in the piston cylinder, and an air supply pipe is communicated between an air outlet of the ventilation pipe and the upper end of the piston cylinder; the push disc is provided with a boss, the boss is sleeved with a slidable rotation-stopping disc body, the push convex bars are arranged on the outer end face of the disc body, the boss is sleeved with a rotatable adjusting fluted disc, a plurality of abutting blocks are uniformly arranged on the inner end face of the disc body, arc-shaped adjusting convex bars are correspondingly arranged on the end face of the adjusting fluted disc and the abutting blocks, the thickness of the adjusting convex bars is gradually increased from one end to the other end, the highest point of the adjusting convex bars abuts against the abutting blocks, a positioning spring in a tensioning state is connected between the disc body and the boss, a circle of gear rings are arranged at the edge of the adjusting fluted disc, engaging teeth on the telescopic rods are close to the gear rings, the telescopic rods move downwards to enable the engaging teeth to be meshed with the gear rings to drive the adjusting fluted disc to rotate, the adjusting convex bars slide.
When the fan normally operates, wind pressure is generated in the fan, when the wind pressure is too high, the pushing force applied to the pushing plug is larger than the pretightening force of the pretightening spring, the pushing plug is pushed upwards, airflow is conveyed into the piston cylinder through the ventilation groove, the ventilation pipe and the blast pipe, the piston moves downwards under the action of air pressure, thereby pushing the telescopic rod to move downwards, the telescopic rod moves downwards to enable the meshing teeth to be meshed with the gear ring in a matching way to drive the adjusting fluted disc to rotate, the adjusting raised strips slide from a high point to a low point through the abutting blocks, make the disk body to being close to the removal of regulation fluted disc direction under the positioning spring effect, the air gap increase between conductor dish and the permanent magnetism dish transmits the epaxial moment of torsion of fan pivot and reduces, and the wind-force of fan reduces, makes the wind pressure in the fan be less than the maximum value of settlement, prevents that the too big and waste and the too big normal operating that influences kiln, boiler of wind-force that cause the energy consumption of wind pressure of fan.
Preferably, a spring seat is installed above the ventilation groove in the ventilation pipe, a through hole is formed in the spring seat, a spring installation groove is formed in the push plug, and the pre-tightening spring is installed in the spring seat and the spring installation groove. The pre-tightening spring is installed stably and reliably.
Preferably, the end part of the lug boss is connected with a limiting disc, and the limiting disc abuts against the disc body. The limiting disc plays a good role in positioning the disc body.
Preferably, a shaft shoulder is arranged on the outer wall of the boss, the adjusting fluted disc is installed at the position of the shaft shoulder, the boss is connected with a check ring, and the check ring is attached to the end face of the adjusting fluted disc. The installation of the adjusting fluted disc is stable and reliable.
Compared with the prior art, the invention has the beneficial effects that: (1) the steam-electricity double-power driving fan capable of automatically switching has a simple structure, the power for driving the fan can be automatically switched between the steam turbine and the motor, the normal operation requirements of the fan under different conditions can be met, and the influence of the fan on a production system due to the power problem is avoided; (2) steam turbine and motor each other are reserve, and arbitrary one kind drive arrangement breaks down, can not lead to the fact the influence to the fan operation, and two kinds of powers are connected with the fan through permanent magnet coupling respectively, can realize breaking away from completely with the operation fan, do not influence normal maintenance. The permanent magnet coupler does not need to consume energy, is free of mechanical connection, has low centering requirement, does not conduct vibration, is simple in structure, does not have maintenance cost, and improves the operation efficiency and stability of equipment.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a structural schematic of the permanent magnet coupling position of the present invention;
FIG. 3 is a schematic view of the construction of the push plate of the present invention;
FIG. 4 is a partial schematic view of the vent of the present invention;
FIG. 5 is a cross-sectional view of the push plate of the present invention;
in the figure: 1. a steam turbine, 2, a motor, 3, a fan, 4, a controller, 5, a steam turbine output shaft, 6, a motor output shaft, 7, a fan rotating shaft, 8, a permanent magnet coupling, 9, a conductor disc, 10, a permanent magnet disc, 11, an air gap adjusting mechanism, 12, an air gap, 13, a mounting rack, 14, a fixing sleeve, 15, a pushing disc, 16, a sliding sleeve, 17, a plane bearing, 18, a shaft sleeve, 19, a pushing convex strip, 20, a convex block, 21, a connecting rod, 22, a swing rod, 23, an actuator motor, 24, a connecting sleeve, 25, a tensioning spring, 26, a limiting column, 27, a mounting ring groove, 28, a limiting block, 29, an extension arm, 30, a positioning ring, 31, an end cover, 32, a ventilation pipe, 33, a positioning sleeve, 34, a pushing plug, 35, a pre-tightening spring, 36, a ventilation groove, 37, a piston cylinder, 38, a piston, 39, a, 42. the air supply pipe comprises an air supply pipe 43, a boss 44, a disc body 45, an adjusting fluted disc 46, an abutting block 47, an adjusting convex strip 48, a positioning spring 49, a gear ring 50, a spring seat 51, a spring mounting groove 52, a limiting disc 53 and a retaining ring.
Detailed Description
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example (b): a steam-electricity double-power driving fan structure capable of automatically switching (see attached figures 1 to 5) comprises a steam turbine 1, a motor 2, a fan 3 and a controller 4, wherein the fan is installed between the steam turbine and the motor, a steam turbine output shaft 5 is installed on the steam turbine, a motor output shaft 6 is installed on the motor, a fan rotating shaft 7 is installed on the fan, blades are installed on the fan rotating shaft, the blades are installed in the fan, two ends of the fan rotating shaft respectively extend out of the left side and the right side of the fan, and permanent magnet couplers 8 are installed between the steam turbine output shaft and the fan rotating shaft and between the motor output shaft and the fan rotating; the permanent magnet coupling comprises a conductor disc 9, a permanent magnet disc 10 and an air gap adjusting mechanism 11, wherein the conductor disc and the permanent magnet disc are oppositely arranged, an air gap 12 is arranged between the conductor disc and the permanent magnet disc, the permanent magnet disc and the air gap adjusting mechanism are respectively connected to two ends of a rotating shaft of the fan, and the conductor disc is fixedly connected to an output shaft of the steam turbine and an output shaft of the motor; the air gap adjusting mechanism comprises a mounting frame 13, a fixed sleeve 14, a pushing disc 15, a sliding sleeve 16, a plane bearing 17 and a permanent magnet connecting shaft sleeve 18, wherein the shaft sleeve can slide and stop rotating and is sleeved on a fan rotating shaft, the sliding and stopping rotating of the air gap adjusting mechanism means that the shaft sleeve can slide and stop rotating and is sleeved on the fan rotating shaft, the sliding and stopping rotating of the air gap adjusting mechanism means that the shaft sleeve can slide axially and can not rotate mutually, the fixed sleeve is installed on the mounting frame, the fixed sleeve is movably sleeved on the fan rotating shaft, the sliding sleeve can slide and is sleeved on the fixed sleeve, the plane bearing is installed between the shaft sleeve and the sliding sleeve, a plurality of arc-shaped pushing convex strips 19 are uniformly distributed on the surface of the pushing disc facing the sliding sleeve, the thickness of the pushing convex strips is gradually increased from one end to the other end, a convex, the controller controls the actuator motor, a connecting sleeve 24 is tightly connected between the fixed sleeve and the shaft sleeve on the rotating shaft of the fan, and a tension spring 25 is arranged between the connecting sleeve and the shaft sleeve. The front end of the motor of the connecting actuator is connected with two limiting posts 26 for resisting the limiting swing rod, and the two limiting posts are respectively arranged on two sides of the swing rod. The sliding sleeve is provided with a mounting ring groove 27 for mounting a plane bearing, and the plane bearing is mounted in the mounting ring groove. The fixed sleeve is fixedly connected with a plurality of limiting blocks 28, and the pushing disc is arranged between the limiting blocks and the sliding sleeve. The upper end and the lower end of the pushing disc are both provided with an extension arm 29, and the connecting rod is hinged at the end part of the extension arm above. The edge of the conductor disc is provided with a positioning ring 30, the end part of the positioning ring is provided with an end cover 31, the end cover is provided with a through hole, and the permanent magnet disc is arranged in the positioning ring.
A vent pipe 32 is arranged in the position, close to the air outlet, in the fan, a positioning sleeve 33, a pushing plug 34 and a pre-tightening spring 35 are arranged in the vent pipe, close to the air inlet, in the vent pipe, a circular truncated cone ring structure with a large lower part and a small upper part is arranged at the inlet position of the vent pipe, the pre-tightening spring is abutted against the pushing plug, the pushing plug is abutted against the positioning sleeve, a plurality of axially arranged vent grooves 36 are uniformly distributed on the inner wall of the vent pipe, and the pushing plug is arranged; a piston cylinder 37 is connected to the fixed sleeve, a piston 38 is installed in the piston cylinder, a telescopic rod 39 is connected to the piston, the lower end of the telescopic rod extends out of the piston cylinder, a row of meshing teeth 40 are arranged on the telescopic rod, a return spring 41 is installed below the piston in the piston cylinder, and an air supply pipe 42 is communicated between an air outlet of the ventilation pipe and the upper end of the piston cylinder; be equipped with boss 43 on the promotion dish, the slidable spin-stopping's of suit disk body 44 on the boss, the promotion sand grip sets up on the disk body outer terminal surface, the rotatable regulation fluted disc 45 of suit on the boss, the equipartition sets up a plurality of butt piece 46 on the terminal surface in the disk body, it is equipped with curved regulation sand grip 47 with the butt piece correspondence on the regulation fluted disc terminal surface, the thickness of adjusting the sand grip increases from one end to the other end gradually, the peak butt of regulation sand grip is on the butt piece, connect the positioning spring 48 that is in taut state between disk body and the boss, it is equipped with round ring gear 49 to adjust the fluted disc edge, the meshing tooth on the telescopic link is close to the ring gear setting, telescopic link downstream makes meshing tooth and ring gear adaptation meshing drive the regulation fluted disc and rotates, adjust the sand grip and slide the butt piece to the low point by the. A spring seat 50 is arranged above the ventilation groove in the ventilation pipe, a through hole is formed in the spring seat, a spring mounting groove 51 is formed in the push plug, and a pre-tightening spring is mounted in the spring seat and the spring mounting groove. The end of the boss is connected with a limiting disc 52 which is connected with the disc body in an abutting mode. The outer wall of the boss is provided with a shaft shoulder, the adjusting fluted disc is arranged at the position of the shaft shoulder, the boss is connected with a check ring 53, and the check ring is attached to the end face of the adjusting fluted disc.
Permanent magnet couplings are arranged between the output shaft of the steam turbine and the rotating shaft of the fan and between the output shaft of the motor and the rotating shaft of the fan, and the permanent magnet couplings can be selected to work according to actual industrial and mining. When the permanent magnet coupling works, the controller controls the actuator motor to work, the actuator motor output shaft rotates to drive the pushing disc to rotate through the swing rod and the connecting rod, so that the pushing convex strips slide through the convex blocks from thin to thick, the pushing sliding sleeve and the shaft sleeve move towards the direction away from the pushing disc, the permanent magnet disc is close to the conductor disc, an air gap between the conductor disc and the permanent magnet disc is reduced, the steam turbine output shaft or the motor output shaft can drive the fan rotating shaft to rotate, and the air outlet of the fan starts air outlet. The larger the air gap, the smaller the output torque, and the smaller the air gap, the larger the output torque. The controller controls the rotation angle of the output shaft of the motor of the actuator to realize the adjustment of 0-100% of output torque, and realize the clutching between the steam turbine and the fan and between the motor and the fan. The automatic switching of the two permanent magnet couplers is realized through the controller, and the normal operation requirements of the fan under different conditions are met. When the fan normally operates, wind pressure is generated in the fan, when the wind pressure is too high, the pushing force applied to the pushing plug is larger than the pretightening force of the pretightening spring, the pushing plug is pushed upwards, airflow is conveyed into the piston cylinder through the ventilation groove, the ventilation pipe and the blast pipe, the piston moves downwards under the action of air pressure, thereby pushing the telescopic rod to move downwards, the telescopic rod moves downwards to enable the meshing teeth to be meshed with the gear ring in a matching way to drive the adjusting fluted disc to rotate, the adjusting raised strips slide from a high point to a low point through the abutting blocks, make the disk body to being close to the removal of regulation fluted disc direction under the positioning spring effect, the air gap increase between conductor dish and the permanent magnetism dish transmits the epaxial moment of torsion of fan pivot and reduces, and the wind-force of fan reduces, makes the wind pressure in the fan be less than the maximum value of settlement, prevents that the too big and waste and the too big normal operating that influences kiln, boiler of wind-force that cause the energy consumption of wind pressure of fan.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (10)
1. A steam-electricity double-power driving fan structure capable of automatically switching is characterized by comprising a steam turbine, a motor, a fan and a controller, wherein the fan is installed between the steam turbine and the motor; the permanent magnet coupling comprises a conductor disc, a permanent magnet disc and an air gap adjusting mechanism, wherein the conductor disc and the permanent magnet disc are oppositely arranged, an air gap is formed between the conductor disc and the permanent magnet disc, the permanent magnet disc and the air gap adjusting mechanism are connected to two ends of a rotating shaft of the fan, and the conductor disc is fixedly connected to an output shaft of the steam turbine and an output shaft of the motor; the air gap adjusting mechanism comprises a mounting rack, a fixed sleeve, a pushing disk, a sliding sleeve, a plane bearing and a permanent magnet connecting shaft sleeve, the shaft sleeve can slide and stop rotating and is sleeved on the rotating shaft of the fan, the sliding and stopping rotating means that the shaft sleeve can axially slide between the shaft sleeve and the rotating shaft, but can not the rotation each other, fixed cover is installed on the mounting bracket, fixed cover and fan pivot activity suit, sliding sleeve slidable suit is on fixed cover, flat bearing installs between axle sleeve and sliding sleeve, the equipartition is equipped with a plurality of curved promotion sand grips towards the sliding sleeve on the surface, the thickness that promotes the sand grip increases from one end to the other end gradually, correspond on the sliding sleeve terminal surface with the promotion sand grip and be equipped with the lug, the articulated connecting rod on the promotion dish, the articulated pendulum rod of connecting rod tip, pendulum rod fastening connection executor motor output shaft, controller control executor motor, fastening connection has the adapter sleeve between fixed cover and the axle sleeve in the fan pivot, install taut spring between adapter sleeve and the axle sleeve.
2. The automatic switching steam-electric hybrid driving fan structure as claimed in claim 1, wherein the front end of the motor connected to the actuator is connected to two limiting posts for blocking the limiting swing rod, and the two limiting posts are respectively disposed on two sides of the swing rod.
3. The automatic switching steam-electric hybrid driving fan structure as claimed in claim 1, wherein the sliding sleeve is provided with a mounting ring groove for mounting the flat bearing, and the flat bearing is mounted in the mounting ring groove.
4. The automatically switchable steam-electric hybrid blower structure as claimed in claim 1, wherein the fixed sleeve is fastened to a plurality of stoppers, and the pushing plate is disposed between the stoppers and the sliding sleeve.
5. The automatic switching steam-electric hybrid driving fan structure as claimed in claim 1, wherein the upper and lower ends of the pushing plate are provided with extension arms, and the connecting rod is hinged to the end of the upper extension arm.
6. The structure of claim 1, wherein the conductor plate has a positioning ring at its edge, an end cap at its end, a through hole in the end cap, and a permanent magnet plate disposed in the positioning ring.
7. The automatic switching steam-electric dual-power driving fan structure as claimed in any one of claims 1 to 6, wherein a ventilation pipe is installed in the fan near the air outlet, a positioning sleeve, a pushing plug and a pre-tightening spring are installed in the ventilation pipe near the air inlet, the pre-tightening spring abuts against the pushing plug, the pushing plug abuts against the positioning sleeve, a plurality of axially arranged ventilation slots are uniformly distributed on the inner wall of the ventilation pipe, and the pushing plug is arranged between the ventilation slots and the positioning sleeve; a piston cylinder is connected to the fixed sleeve, a piston is installed in the piston cylinder, a telescopic rod is connected to the piston, the lower end of the telescopic rod extends out of the piston cylinder, a row of meshing teeth are arranged on the telescopic rod, a return spring is installed below the piston in the piston cylinder, and an air supply pipe is communicated between an air outlet of the ventilation pipe and the upper end of the piston cylinder; the push disc is provided with a boss, the boss is sleeved with a slidable rotation-stopping disc body, the push convex bars are arranged on the outer end face of the disc body, the boss is sleeved with a rotatable adjusting fluted disc, a plurality of abutting blocks are uniformly arranged on the inner end face of the disc body, arc-shaped adjusting convex bars are correspondingly arranged on the end face of the adjusting fluted disc and the abutting blocks, the thickness of the adjusting convex bars is gradually increased from one end to the other end, the highest point of the adjusting convex bars abuts against the abutting blocks, a positioning spring in a tensioning state is connected between the disc body and the boss, a circle of gear rings are arranged at the edge of the adjusting fluted disc, engaging teeth on the telescopic rods are close to the gear rings, the telescopic rods move downwards to enable the engaging teeth to be meshed with the gear rings to drive the adjusting fluted disc to rotate, the adjusting convex bars slide.
8. The structure of claim 7, wherein a spring seat is installed above the ventilation slot in the ventilation pipe, the spring seat is provided with a through hole, the push plug is provided with a spring installation slot, and the pre-tightening spring is installed in the spring seat and the spring installation slot.
9. The automatic switching steam-electric dual-power driving fan structure as claimed in claim 7, wherein the end of the boss is connected with a limiting disc, and the limiting disc abuts against the disc body.
10. The automatic switching steam-electric hybrid driving fan structure as claimed in claim 7, wherein a shoulder is provided on an outer wall of the boss, the adjusting gear is mounted on the shoulder, the boss is connected with a retaining ring, and the retaining ring is attached to an end surface of the adjusting gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371680.0A CN110145477B (en) | 2019-05-06 | 2019-05-06 | Steam-electricity dual-power driving fan structure capable of being automatically switched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910371680.0A CN110145477B (en) | 2019-05-06 | 2019-05-06 | Steam-electricity dual-power driving fan structure capable of being automatically switched |
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| CN111591022B (en) * | 2020-03-18 | 2022-04-08 | 浙江印画数码科技有限公司 | Efficient flat-pressing type cold transfer printing machine and process |
| CN111810254B (en) * | 2020-06-16 | 2022-06-03 | 国电龙源节能技术有限公司 | Induced draft fan steam-electricity dual-drive system and operation control method thereof |
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